feat: Improve MediaAssetCard video controls and add gallery view (#6065)

## Summary
- Enhanced video control visibility logic for better UX
- Added fullscreen gallery view with zoom-in button  
- Fixed hover interaction issues with overlays

## Changes

### Video Controls
- **Before**: Controls hidden when not hovering
- **After**: Controls always visible when not playing, hover-based
during playback

### Overlay Behavior  
- **Before**: All overlays hidden during video playback
- **After**: All overlays (actions, tags, layers) show on hover even
during playback

### Gallery View
- Added zoom-in button to top-right corner (all media types except 3D)
- Integrated with existing ResultGallery component
- Gallery closes when clicking dimmed background area

### Bug Fixes
- Fixed hover flicker issue by proper event handling on overlay elements

## Test Plan
- [x] Test video controls visibility (paused vs playing)
- [x] Test overlay hover behavior during video playback
- [x] Test zoom-in button opens gallery view
- [x] Test gallery closes on background click
- [x] Test 3D assets don't show zoom button
- [x] Test in Storybook with various media types

🤖 Generated with [Claude Code](https://claude.ai/code)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-6065-feat-Improve-MediaAssetCard-video-controls-and-add-gallery-view-28d6d73d3650818c90cfc5d0d00e4826)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Claude <noreply@anthropic.com>

src/platform/assets/components/MediaAssetCard.stories.ts

@@ -1,11 +1,32 @@
 import type { Meta, StoryObj } from '@storybook/vue3-vite'
 
+import ResultGallery from '@/components/sidebar/tabs/queue/ResultGallery.vue'
+
+import { useMediaAssetGalleryStore } from '../composables/useMediaAssetGalleryStore'
 import type { AssetMeta } from '../schemas/mediaAssetSchema'
 import MediaAssetCard from './MediaAssetCard.vue'
 
 const meta: Meta<typeof MediaAssetCard> = {
-  title: 'AssetLibrary/MediaAssetCard',
+  title: 'Platform/Assets/MediaAssetCard',
   component: MediaAssetCard,
+  decorators: [
+    () => ({
+      components: { ResultGallery },
+      setup() {
+        const galleryStore = useMediaAssetGalleryStore()
+        return { galleryStore }
+      },
+      template: `
+        <div>
+          <story />
+          <ResultGallery 
+            v-model:active-index="galleryStore.activeIndex"
+            :all-gallery-items="galleryStore.items"
+          />
+        </div>
+      `
+    })
+  ],
   argTypes: {
     context: {
       control: 'select',

src/platform/assets/components/MediaAssetCard.vue

@@ -33,7 +33,7 @@
             :is="getTopComponent(asset.kind)"
             :asset="asset"
             :context="context"
-            @view="actions.viewAsset(asset!.id)"
+            @view="handleZoomClick"
             @download="actions.downloadAsset(asset!.id)"
             @play="actions.playAsset(asset!.id)"
             @video-playing-state-changed="isVideoPlaying = $event"
@@ -41,31 +41,48 @@
           />
         </template>
 
-        <!-- Actions overlay (top-left) - show on hover or when menu is open, but not when video is playing -->
+        <!-- Actions overlay (top-left) - show on hover or when menu is open -->
         <template v-if="showActionsOverlay" #top-left>
-          <MediaAssetActions @menu-state-changed="isMenuOpen = $event" />
+          <MediaAssetActions
+            @menu-state-changed="isMenuOpen = $event"
+            @mouseenter="handleOverlayMouseEnter"
+            @mouseleave="handleOverlayMouseLeave"
+          />
         </template>
 
-        <!-- Zoom button (top-right) - show on hover, but not when video is playing -->
+        <!-- Zoom button (top-right) - show on hover for all media types -->
         <template v-if="showZoomOverlay" #top-right>
-          <IconButton size="sm" @click="actions.viewAsset(asset!.id)">
+          <IconButton
+            size="sm"
+            @click.stop="handleZoomClick"
+            @mouseenter="handleOverlayMouseEnter"
+            @mouseleave="handleOverlayMouseLeave"
+          >
             <i class="icon-[lucide--zoom-in] size-4" />
           </IconButton>
         </template>
 
-        <!-- Duration/Format chips (bottom-left) - hide when video is playing -->
+        <!-- Duration/Format chips (bottom-left) - show on hover even when playing -->
         <template v-if="showDurationChips" #bottom-left>
-          <SquareChip variant="light" :label="formattedDuration" />
-          <SquareChip v-if="fileFormat" variant="light" :label="fileFormat" />
+          <div
+            class="flex flex-wrap items-center gap-1"
+            @mouseenter="handleOverlayMouseEnter"
+            @mouseleave="handleOverlayMouseLeave"
+          >
+            <SquareChip variant="light" :label="formattedDuration" />
+            <SquareChip v-if="fileFormat" variant="light" :label="fileFormat" />
+          </div>
         </template>
 
-        <!-- Output count (bottom-right) - hide when video is playing -->
+        <!-- Output count (bottom-right) - show on hover even when playing -->
         <template v-if="showOutputCount" #bottom-right>
           <IconTextButton
             type="secondary"
             size="sm"
             :label="context?.outputCount?.toString() ?? '0'"
-            @click="actions.openMoreOutputs(asset?.id || '')"
+            @click.stop="actions.openMoreOutputs(asset?.id || '')"
+            @mouseenter="handleOverlayMouseEnter"
+            @mouseleave="handleOverlayMouseLeave"
           >
             <template #icon>
               <i class="icon-[lucide--layers] size-4" />
@@ -116,6 +133,7 @@ import { formatDuration } from '@/utils/formatUtil'
 import { cn } from '@/utils/tailwindUtil'
 
 import { useMediaAssetActions } from '../composables/useMediaAssetActions'
+import { useMediaAssetGalleryStore } from '../composables/useMediaAssetGalleryStore'
 import type {
   AssetContext,
   AssetMeta,
@@ -159,10 +177,12 @@ const cardContainerRef = ref<HTMLElement>()
 const isVideoPlaying = ref(false)
 const isMenuOpen = ref(false)
 const showVideoControls = ref(false)
+const isOverlayHovered = ref(false)
 
 const isHovered = useElementHover(cardContainerRef)
 
 const actions = useMediaAssetActions()
+const galleryStore = useMediaAssetGalleryStore()
 
 provide(MediaAssetKey, {
   asset: toRef(() => asset),
@@ -171,14 +191,14 @@ provide(MediaAssetKey, {
   showVideoControls
 })
 
-const containerClasses = computed(() => {
-  return cn(
+const containerClasses = computed(() =>
+  cn(
     'gap-1',
     selected
       ? 'border-3 border-zinc-900 dark-theme:border-white bg-zinc-200 dark-theme:bg-zinc-700'
       : 'hover:bg-zinc-100 dark-theme:hover:bg-zinc-800'
   )
-})
+)
 
 const formattedDuration = computed(() => {
   if (!asset?.duration) return ''
@@ -201,33 +221,58 @@ const durationChipClasses = computed(() => {
   return ''
 })
 
-const showHoverActions = computed(() => {
-  return !loading && !!asset && (isHovered.value || isMenuOpen.value)
-})
+const isCardOrOverlayHovered = computed(
+  () => isHovered.value || isOverlayHovered.value || isMenuOpen.value
+)
 
-const showZoomButton = computed(() => {
-  return asset?.kind === 'image' || asset?.kind === '3D'
-})
+const showHoverActions = computed(
+  () => !loading && !!asset && isCardOrOverlayHovered.value
+)
 
-const showActionsOverlay = computed(() => {
-  return showHoverActions.value && !isVideoPlaying.value
-})
+const showActionsOverlay = computed(
+  () =>
+    showHoverActions.value &&
+    (!isVideoPlaying.value || isCardOrOverlayHovered.value)
+)
 
-const showZoomOverlay = computed(() => {
-  return showHoverActions.value && showZoomButton.value && !isVideoPlaying.value
-})
+const showZoomOverlay = computed(
+  () =>
+    showHoverActions.value &&
+    asset?.kind !== '3D' &&
+    (!isVideoPlaying.value || isCardOrOverlayHovered.value)
+)
 
-const showDurationChips = computed(() => {
-  return !loading && asset?.duration && !isVideoPlaying.value
-})
+const showDurationChips = computed(
+  () =>
+    !loading &&
+    asset?.duration &&
+    (!isVideoPlaying.value || isCardOrOverlayHovered.value)
+)
 
-const showOutputCount = computed(() => {
-  return !loading && context?.outputCount && !isVideoPlaying.value
-})
+const showOutputCount = computed(
+  () =>
+    !loading &&
+    context?.outputCount &&
+    (!isVideoPlaying.value || isCardOrOverlayHovered.value)
+)
 
 const handleCardClick = () => {
   if (asset) {
     actions.selectAsset(asset)
   }
 }
+
+const handleOverlayMouseEnter = () => {
+  isOverlayHovered.value = true
+}
+
+const handleOverlayMouseLeave = () => {
+  isOverlayHovered.value = false
+}
+
+const handleZoomClick = () => {
+  if (asset) {
+    galleryStore.openSingle(asset)
+  }
+}
 </script>

src/platform/assets/components/MediaAssetMoreMenu.vue

@@ -1,6 +1,7 @@
 <template>
   <div class="flex flex-col">
     <IconTextButton
+      v-if="asset?.kind !== '3D'"
       type="transparent"
       class="dark-theme:text-white"
       label="Inspect asset"
@@ -93,6 +94,7 @@ import { computed, inject } from 'vue'
 import IconTextButton from '@/components/button/IconTextButton.vue'
 
 import { useMediaAssetActions } from '../composables/useMediaAssetActions'
+import { useMediaAssetGalleryStore } from '../composables/useMediaAssetGalleryStore'
 import { MediaAssetKey } from '../schemas/mediaAssetSchema'
 import MediaAssetButtonDivider from './MediaAssetButtonDivider.vue'
 
@@ -102,14 +104,13 @@ const { close } = defineProps<{
 
 const { asset, context } = inject(MediaAssetKey)!
 const actions = useMediaAssetActions()
+const galleryStore = useMediaAssetGalleryStore()
 
-const showWorkflowOptions = computed(() => {
-  return context.value.type
-})
+const showWorkflowOptions = computed(() => context.value.type)
 
 const handleInspect = () => {
   if (asset.value) {
-    actions.viewAsset(asset.value.id)
+    galleryStore.openSingle(asset.value)
   }
   close()
 }

src/platform/assets/components/MediaVideoTop.vue

@@ -1,18 +1,19 @@
 <template>
   <div
     class="relative h-full w-full overflow-hidden rounded bg-black"
-    @mouseenter="showControls = true"
-    @mouseleave="showControls = false"
+    @mouseenter="isHovered = true"
+    @mouseleave="isHovered = false"
   >
     <video
       ref="videoRef"
-      :controls="showControls"
+      :controls="shouldShowControls"
       preload="none"
       :poster="asset.preview_url"
       class="relative h-full w-full object-contain"
       @click.stop
       @play="onVideoPlay"
       @pause="onVideoPause"
+      @ended="onVideoEnded"
     >
       <source :src="asset.src || ''" />
     </video>
@@ -20,7 +21,7 @@
 </template>
 
 <script setup lang="ts">
-import { onMounted, ref, watch } from 'vue'
+import { computed, onMounted, ref, watch } from 'vue'
 
 import type { AssetContext, AssetMeta } from '../schemas/mediaAssetSchema'
 
@@ -36,22 +37,32 @@ const emit = defineEmits<{
 }>()
 
 const videoRef = ref<HTMLVideoElement>()
-const showControls = ref(true)
+const isHovered = ref(false)
+const isPlaying = ref(false)
 
-watch(showControls, (controlsVisible) => {
+// Always show controls when not playing, hide/show based on hover when playing
+const shouldShowControls = computed(() => !isPlaying.value || isHovered.value)
+
+watch(shouldShowControls, (controlsVisible) => {
   emit('videoControlsChanged', controlsVisible)
 })
 
 onMounted(() => {
-  emit('videoControlsChanged', showControls.value)
+  emit('videoControlsChanged', shouldShowControls.value)
 })
 
 const onVideoPlay = () => {
-  showControls.value = true
+  isPlaying.value = true
   emit('videoPlayingStateChanged', true)
 }
 
 const onVideoPause = () => {
+  isPlaying.value = false
+  emit('videoPlayingStateChanged', false)
+}
+
+const onVideoEnded = () => {
+  isPlaying.value = false
   emit('videoPlayingStateChanged', false)
 }
 </script>